Breaking four years of silence, two-time Olympian Diane Williams said Sunday that she took anabolic steroids before the 1984 Los Angeles Games. Williams, 28, who finished fourth in the 100 meters at the U.S. Olympic trials in July, 1984, also said in an interview with ABC's Donna de Varona that she failed a drug test during the trials in the Coliseum.

LAS VEGAS - Floyd Mayweather, preparing for his May 3 fight against Marcos Maidana, was humorously diplomatic this week when asked about promoter Bob Arum's latest gambit to force a superfight between Mayweather and Manny Pacquiao. Arum suggested this month that boxing fans should boycott the Mayweather-Maidana fight, suggesting they not buy tickets to see it live at the MGM Grand or watch it on Showtime pay-per-view. “Only thing we can do is pray for Bob Arum,” Mayweather said this week during media day for his 12-round world championship unification bout with Maidana.

The past year has been rough for Jamaican track and field, which came under heavy scrutiny after a string of high-profile athletes failed drug tests around the time of the 2013 national championships. On Wednesday, the Jamaicans got some good news. The World Anti-Doping Agency announced that the island nation had corrected a number of significant flaws in its drug control program. "They've done exactly what we've asked them to do to put their program into place," David Howman, WADA's director general, told the Associated Press.

Manny Pacquiao says he isn't interested in separating from promoter Bob Arum even if it would secure a mega-bout against Floyd Mayweather Jr. Pacquiao, preparing for an April 12 World Boxing Organization welterweight title fight against unbeaten champion Timothy Bradley at MGM Grand in Las Vegas, told the Los Angeles Times on Monday he's not leaning toward a split with Arum. “Right now, I don't have issues,” Pacquiao said before a workout at Wild Card Boxing Club in Hollywood.

Juan Manuel Marquez was subjected to skepticism in December when the newly buffed-up multichampion boxer knocked Manny Pacquiao out stone cold, the first time Pacquaio hit the canvas in the pair's five fights. Now, Marquez, in advance of his Oct. 12 world welterweight title fight at Thomas and Mack Center in Las Vegas against Palm Springs' Timothy Bradley, is due to be subjected to an unspecified number of random drug tests. There remains, however, some questions about who will preside over the testing.

"Police Union Fights Random Drug Testing" (Metro, Feb. 17) sets forth the purported position of the Los Angeles police union on drug testing of police officers. There are some issues in a democratic society that do not lend themselves to the democratic process of decision by majority vote. The safety of the citizens of Los Angeles is at issue here. The purported opposition to "modification of their four-year contract in the middle of the term" does not directly address the issue of drug testing of police officers.

Shaun White slumps on a couch inside a cavernous chalet rented by one of his corporate sponsors. The millionaire snowboarder appears weary from a party thrown the previous night by another sponsor. It's Thursday afternoon and beyond the patio, on Aspen's Buttermilk Mountain, the Winter X Games have begun. White, 22, is two days from winning the popular slopestyle competition, and three days from repeating as halfpipe champion.

Georges St-Pierre said Tuesday the lack of stringent drug testing for mixed martial arts fighters contributed to his decision to take an indefinite leave as Ultimate Fighting Championship welterweight champion. In an interview with reporters in Montreal, St-Pierre in a story published by Canadian Press said the absence of a uniform drug-testing policy up to his satisfaction “bothered me greatly. It was one of the reasons I decided to step aside.” St-Pierre, who endured sometimes brutal punishment in November to successfully defend his welterweight belt against Johny Hendricks by split-decision in Las Vegas, originally wanted Hendricks to participate in drug testing overseen by the Las Vegas-based Voluntary Anti-Doping Assn.

Florida Gov. Rick Scott's attempt to force drug testing on state workers has been blocked by a federal judge, the latest development in a case seen as a bellwether for similar efforts involving employees and those receiving social service or welfare benefits. On Thursday, Federal District Judge Ursula Ungaro ruled that Scott's executive order violated constitutional guarantees against unreasonable search and seizure because it “does not identify a concrete danger that must be addressed by suspicionless drug testing.” The Miami-based judge also wrote that the order should be struck down because “the governor shows no evidence of a drug-use problem at the covered agencies.” The decision will be appealed, Scott said in a statement emailed to reporters.

Bless Dershowitz for his courage and poise in negotiating the border between liberty and safety in drug testing. The specter of inevitability doesn't have to spook people willing to think. Maybe such awareness can help us navigate through such shadowy realms as euthanasia and abortion. AMY ADELSTEIN Canoga Park

The past year has been rough for Jamaican track and field, which came under heavy scrutiny after a string of high-profile athletes failed drug tests around the time of the 2013 national championships. On Wednesday, the Jamaicans got some good news. The World Anti-Doping Agency announced that the island nation had corrected a number of significant flaws in its drug control program. "They've done exactly what we've asked them to do to put their program into place," David Howman, WADA's director general, told the Associated Press.

Ten days before opening ceremonies at the 2014 Sochi Olympics, the host country has suffered the embarrassment of having one or more of its athletes suspended for a failed drug test. The International Biathlon Union announced Wednesday three competitors from Russia and Lithuania were found to have an unnamed prohibited substance in their samples. "According to the WADA [World Anti-Doping Agency] code, the IBU therefore provisionally suspended the respective athletes from any IBU competitions until the decision of the anti-doping hearing panel is reached," the statement said.

Georges St-Pierre said Tuesday the lack of stringent drug testing for mixed martial arts fighters contributed to his decision to take an indefinite leave as Ultimate Fighting Championship welterweight champion. In an interview with reporters in Montreal, St-Pierre in a story published by Canadian Press said the absence of a uniform drug-testing policy up to his satisfaction “bothered me greatly. It was one of the reasons I decided to step aside.” St-Pierre, who endured sometimes brutal punishment in November to successfully defend his welterweight belt against Johny Hendricks by split-decision in Las Vegas, originally wanted Hendricks to participate in drug testing overseen by the Las Vegas-based Voluntary Anti-Doping Assn.

The upcoming New Year's crackdown on drunken driving will include a new test for many people who are pulled over - an oral swab that checks for marijuana, cocaine and other drugs. The voluntary swabbing has been used just 50 times this year. But Los Angeles City Atty. Mike Feuer is pushing to use it at more checkpoints and jails as officials try to limit the number of drivers impaired by substances other than alcohol. “Traditionally, our office has focused on drunken driving cases,” Feuer said at a news conference Friday.

With less than three months to go before the 2014 Sochi Olympics, the principal drug-testing laboratory in Russia could lose its international accreditation. The World Anti-Doping Agency is investigating the Moscow facility -- which handled testing for the recent world track and field championships -- to be sure it is compliant with agency standards. Arne Ljungqvist, the medical commission chairman for the International Olympic Committee, told the Associated Press that he expects to receive the investigation's findings soon.

Michael Phelps has rejoined the U.S. drug testing program, the strongest signal yet that he's planning a comeback for the Rio Olympics. Phelps told the Associated Press on Thursday that "nothing is set in stone" though clearly he has enjoyed getting back into shape - he's down about 15 pounds - and working out with his former team at the North Baltimore Aquatic Club. "If I decide to keep going and swim again, then I'll compete," Phelps told the AP in an exclusive telephone interview from Minneapolis, where he is attending an Arena Grand Prix meet this weekend.

Federal air safety regulators have proposed fining United Airlines $584,375 for allegedly failing to properly perform drug tests on workers in safety-sensitive areas. The Federal Aviation Administration on Friday accused the airline of transferring 13 employees to safety-sensitive positions before it received the results of their drug and alcohol tests. The violations took place throughout the airline and included workers on the flight crew, maintenance and service teams, FAA spokesman Paul Turk said.

International track-and-field officials announced Friday that seven athletes failed drug tests at last month's world championships in Moscow. The International Assn. of Athletics Federations said that it collected urine samples from 538 athletes during the competition and also conducted 1,919 blood tests. “I am delighted that with the assistance of our partners the IAAF has been able to carry out such a comprehensive anti-doping testing program in Moscow,” IAAF President Lamine Diack said.

After a week in which news about Lamar Odom was moving very quickly, the basketball player has been arrested on suspicion of DUI - for driving too slowly. The arrest capped a week in which rumors that the "Khloe & Lamar" star was cheating on wife Khloe Kardashian Odom gave way to allegations that he had a drug-abuse problem. Headlines screamed briefly that Odom was "missing" after a failed intervention attempt, but his agent cleared that up somewhat, telling ESPN only that the NBA free agent wasn't missing, and that Khloe knew exactly where he was. Early Friday morning, Odom was going about 50 mph when he was pulled over on the 101 Freeway in the San Fernando Valley, L.A. Now reported.